[FFmpeg-user] repair black frames?

Michael Koch astroelectronic at t-online.de
Sun Oct 25 17:26:05 EET 2020

Am 25.10.2020 um 16:23 schrieb Simon Roberts:
> Greetings all,
> I have just noticed that some of my video recordings have a few random
> black frames in them. These will be spaced out a few minutes, don't seem to
> have any obvious cause (though my recording system is a little Heath
> Robinson / Rube Goldberg, so I have some ideas)
> Anyway, the thought occurred to me that rather than watching, never
> blinking, all the material, and looking for this "manually", ffmpeg might
> be able to help.
> The solution I have in mind would probably be something that recognizes a
> black frame (I *think* it's "pure" black, but I don't have numbers) and
> replaces it with the immediately preceding or following frame).
> Does such a filter exist, or could such behavior be tied together out of
> the features that ffmpeg has?

search for "blackdetect" in the documentation


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